Polyethylenically unsaturated substituted bis-amino polysiloxanes



' POLYETHYLENICALLY em or alkylene group "carbon atoms, at least where-R and y are defined above; (III) UNSATURATED SUBSTI- TUTED BIS-AMINO POLYSILOXANES Philadelphia, and Marvin J. Hur- Pa., assignors to Rohm & Haas Philadelphia, Pa., a corporation of Dela- Peter L. de Benneville, witz, Elkins Park, Company, ware No Drawing. Original application May 12, 1955, Serial vNo. 507,973. Divided and this application November 7, 1957, Serial No. 694,919

13 Claims. (Cl. 260- 465) This invention concerns novel polysiloxanes having terminal unsaturated groups of vinyl type connected to the silicon atoms of the polysiloxane through aliphatic groups comprising oxygen, sulfur, or nitrogen atoms in the linkage. The invention is also concerned with polymers and cop-olymers of such compounds and to methods for the where Y is an oxygen or sulfur atom, A is a cyclohexylhaving 2 to 8, preferably 2 to 4, two thereof extending in a chain and Y atoms, R is a lower alkyl carbon atoms, preferably being between the adjacent N group having 1 to 4 methyl, and y is an integral or mixed number having an average value from about 1 to 9.

The new compounds of Formula I may be made by reacting corresponding dichloropolysiloxanes of Formula H with an amine of Formula III, Formulas II and III being as follows:

CH =CHYANH Where Y and A are defined as before.

The chloropolysiloxanes of Formula II and their method of production are generally disclosed in U. S. Patent 2,381,366. These chloropolysiloxanes are reacted with two molar equivalents of an amine of Formula III. If desired, a mixture of two or more different amines within the scope of Formula III may be used to provide diaminopolysiloxanes which may include different substituted amine groups at each end of the polymeric molecule. In the reaction vessel, there may be present an excess of the amine over the two molar equivalents to serve as an acceptor for the hydrogen chloride produced. Preferably, however, a tertiary amine such as trimethylamine, triethylamine, pyridine or quinoline is used as such acceptor. The reaction with the amines may be effected at a temperature of about 20 C. to room temperature or above, preferably between 5 C. and C. The reaction is preferably carried out in an anhydrous solvent, such as benzene, toluene, or xylenes, or one of the tertiary amines above. The reaction is rapid and exothermic and, therefore, reactants or a solution of one of the reactants to the other reactant or to a solution thereof in one of the anhydrous solvents mentioned above at a rate that is sufliciently slow to enable proper control of the temperature by cooling it is preferred to add one of the I additives for lubricants of the hydrocarbon type.

than 8, with the proviso that when R the formula NHRR".

2,855,885 Patented Dec. 23, 1958 where R is a lower alkyl group having 1 to 4 carbons, methyl being preferred, R and R" together may be the morph'olino residue =(CH CH O, the piperidino residue -(CH or the pyrrolidino residue (CH or separately, R may be phenyl, aralkyl, such as benzyl, cyclohexyl, or an alkyl group having 1 to 18 carbon atoms, R" may be hydrogen, aralkyl, such as benzyl,

'cyclohexyl, or an alkyl group having 1 to 8 carbon atoms,

the total of carbon atoms in R and R" being no greater is an alkyl group having a tertiary carbon atom attached to the nitrogen, R" must be H. I

A compound of Formula V is then reacted with two moles (per mole of Compound V) of an amine of Formula III, thereby producing acompound of Formula I with liberation of two moles of the by-product amine of This reaction may be elfected by simply mixing the diaminopolysiloxane of Formula V with the amine of III and heating the mixture to a temperature adequate to distil off the amine NHR'R" to be removed. This method is particularly applicable when the group NRR" is that of a low boiling amine, such as t-butylamine. The group -NR'R" may also correspond to that of methyl, ethyl, propyl, isopropyl, hexyl, phenyl, benzyl, octadecylamine, or the like, or it may correspond to morpholine, piperidine, pyrrolidino, dimethylamine, diethylamine, and so on. -When a high boiling amine (NHRR") is liberated which would require temperatures above about C. to effect distillation, it is preferable to employ a vacuum to enable a lower temperature to be maintained in the reaction system. In any case, distillation of the amine formed on condensation leaves the desired product substantially free of impurities. No special step or steps for separating or purifying the product of Formula I is required.

Products of Formula I are generally liquids which are relatively non-volatile and high boiling. They are generally soluble in organic solvents including benzene, toluene, xylene, aliphatic hydrocarbons, naphthenic hydrocarbons including the solvent naphthas of both aliphatic and naphthenic types as well as of aromatic type, ethyl acetate, dimethylformamide, dimethylacetamide, acetone, dioxane, chlorinated hydrocarbons including chloroform, ethylenedichloride, carbon tetrachloride and so on.

The products of the present invention are useful as They may also serve as synthetic lubricating oils or as power transmission media in hydraulic systems.

The diethylenically unsaturated compounds of Formula ,I are adapted to undergo addition polymerization and may be polymerized either in bulk (when they are liquid or low-melting solids), or in solution, such as in benzene, toluene, xylenes, solvent naphthas, acetone, dioxane, acetonitrile, dimethylformamide or dimethylacetamide. The temperature of polymerization may be from The polymerization initiators such as lauroyl peroxide, those of the azo the diesters and diamides of azodiisobutyric acid such as the dimethyl, diethyl, diisopropyl or dibutyl esters and the simple diamides or N-substituted amides including the N,N- dimethylamide thereof. The time of polymerization may vary from 2 to 24 hours.

The compounds may be homopolymerized to highly cross-linked polymers by these methods or copolymerized thereby. Examples of comonomers that may be polymerized with the unsaturated silanes of the present invention and thereby converted into insoluble, crosslinked copolymers include acrylonitrile, vinyl chloride, vinylidene chloride, tetrafluoroethylene, the vinyl aromatic compounds, more particularly the vinyl aromatic hydrocarbons (e. g., styrene, isopropenyl toluene, vinyl toluene, the various dialkyl styrenes, etc.), other aliphatic compounds containing a CH =C grouping, e. g. the various substituted acrylonitrile (e. g. methacrylonitrile,

siloxane, which is useful as a synthetic lubricant or a power transmission medium.

Example 2 The procedure of Example 1 is repeated substituting 57.5 parts of 2-methyl-2-aminopropyl vinyl ether for the sulfide. The oily product, bis-(l,l-dimethyl-2-vinyloxyethylamino)polydimethylsiloxane, is a viscous oil which, like that of Example 1, has lubricating properties.

Example 3 ethacrylonitrile, phenylacrylonitrile, etc.), acrylamide and the various substituted acrylamides (e. g. methacrylamide, ethacrylamide, the various N-methylol acrylamide, N-monoalkyl and dialkyl acrylamides and methacrylamides, e. g. N-rnonomethyl, -ethyl, -propyl, -butyl, etc. and N,N-dimethyl-, diethyl-, dipropyl-, dibutyl-, etc., acrylamides and methacrylamides, N-monoaryl and -diaryl acrylamides and alkacrylamides, e. g. N-monophenyl and -diphenyl acrylamides and methacrylamides, etc.), dimethylaminoethyl acrylamide, quaternaries of the latter, such as that obtained with benzyl chloride, vinyl esters, e. g. vinyl acetate, vinyl propionate, vinyl butyrate, vinyl isobutyrate, vinyl valerate, etc., esters of an acrylic acid (including acrylic acid itself and the various alpha-substituted acrylic acids, e. g. methacrylic acid, ethacrylic acid, phenylacrylic acid, etc.), more particularly the alkyl esters of an acrylic acid, e. g., the ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, amyl, hexyl, heptyl, octyl, decyl, dodecyl, hexadecyl, octadecyl, etc. esters of acrylic, methacrylic, ethacrylic, phenylacrylic, etc. acids, vinyl ethers, such as butyl vinyl ether, N-vinyl compounds such as N-vinyl pyrrolidone, and olefins, such as ethylene, fiuorinated vinyl compounds, such as vinylidene fluoride, as well as other vinyl aro matic and vinyl aliphatic compounds, and other compounds containing a single CH =C grouping.

The insoluble cross-linked polymers may be used for ion-exchange purposes. Molded products of infusible and insoluble character may be obtained by bulk copolymerization in a suitable mold. The compounds of Formula I may also be applied to fabricated articles of siliceous fibers, such as glass, asbestos, and mineral wool and polymerized in or on such articles so as to bind fibers thereof to impart dimensional stability thereto.

In the following examples which are illustrative of the present invention, the parts given are by weight unless otherwise noted:

Example 1 To a stirred mixture of 51.5 parts of fl-aminoethyl vinyl sulfide, 101.2 parts of triethylamine, and 90 parts of dry benzene there is added dropwise a solution of N-substituted acrylamides and N-substituted alkacrylamides, for instance A degassed mixture of 95 parts of methyl methacrylate, 5 partsof the product of Example 2 and ).1 part of diethyl azodiisobutyrate is polymerized at a temperature of C. for 8 hours in a closed glass mold of shallow depth. A flexible, tough, cast sheet is obtained on release from the mold.

Example 5 where Y is selected from the group consisting of oxygen and sulfur, A is selected from the group consisting of cyclohexylene and alkylene groups having 2 to 8 carbon atoms, at least two thereof extending in a chain between the adjacent N and Y atoms, R is a lower alltyl group having 1 to 4 carbon atoms, and y is a number having an average value from about 1 to 9. i

2. An addition polymer of a compound defined in claim 1.

3. An addition copolymer of a compound defined in claim 1 with a different monoethylenically unsaturated comonomer containing a single terminal CH & group.

4. An addition copolymer of a compound defined in claim 1 with methyl methacrylate.

5. l3is-(vinylthioethylamino)polydirnethylsiloxane.

6. Bisl l-dimethyl-2-vinyloxyethylamino) polydimeth ylsiloxane.

7. A compound of the formula 73 parts of an or,-dichloropolydimethylsiloxane mixture, having an average of 3.2 silicon atoms per molecule (y=2.2), and parts of dry benzene, While the temperature is maintained at 05 C. The reaction mixture is then filtered and the filtrate stripped to yield an oily product, bis(vinylthioethylamino)polydimethyl- CH3 C4139 C4Hn CH3 in which C l-I is the ethylene group of the formula 8. An addition copolymer of bis-(l,l-dimethyl-2-vinyl oxyethylamino)polydimethylsiloxane with a different copolymerizable unsaturated monomer containing a single aterminalCl-l fi group.

action is effected in amine in excess of two ,polysiloxane.

:action is effected in the accept the hydrogen chloride developed in the reaction.

9. An addition copolymer of bis-(1,1-dimethyl-2-vinyloxyethylamino)polydimethylsiloxane with methyl methacrylate.

10. A method comprising reacting, at a temperature of about -20 C. to about room temperature, an amine of the formula CH =CHYANH with a compound of the formula Cl(Si(R) O) Si(R) Cl where Y is selected from the group consisting of oxygen and sulfur, A is selected from the group consisting of cyclohexylene and alkylene groups having 2 to 8 carbon atoms, at least two thereof extending in a chain between the adjacent N and Y atoms, R is a lower alkyl group having 1 to 4 carbon atoms, and y is a number having an average value from about 1 to 9.

11. A method as defined in claim 10 in which the rethe presence of an amount of the moles per mole of the dichloro- 12. A method as defined in claim 10 in which the represence of a tertiary amine to 13. A method comprising mixing an amine of the formula CH =CHYANH with a compound of the formula R'R"N(Si(R) O) ,Si(R) NR'R" where Y is selected from the group consisting of oxygen and sulfur, A is selected from the group consisting of cyclohexylene and alkylene groups having 2 to 8 carbon atoms, at least two thereof extending in a chain between the adjacent N and Y atoms, R is a lower alkyl group having 1 to 4 carbon atoms, and y is a number having an average value from about 1 to 9, R and R" are selected from the group consisting of radicals directly attached only to the adwhich together and with the adjoining N atom form a heterocyclic nucleus selected from the group consisting of morpholino, piperidino, and pyrrolidino, R, when directly attached only to the adjoining N atom, is selected from the group consisting of phenyl, aralkyl, cyclohexyl, and alkyl groups of 1 to 18 carbon atoms, R", when directly attached only to the adjoining N atom, is selected from the group consisting of H, aralkyl, cyclohexyl and alkyl groups having 1 to 18 carbon atoms, the total of carbon atoms in R and R being no greater than 18, with the proviso that when R is an alkyl group having a tertiary carbon atom attached to the nitrogen, R" must be H, and heating the mixture to distill off an amine NHRR".

No references cited. 

1. A COMPOUND HAVING THE FORMULA: 